The EBI site contains a wide array of databases and tools. It also is a site that contains 3D Rotatable Structures. Enter a substance name in the search box at the top of the page and get a summarized view of information available. To see 3D images, choose the Macromolecular Structures section of results. Select which record you want to see and then click on View in PDBsum. Visualization options and tools are on left side. See search example below on Taxol.